I am building my rear bumper right now and wantd to know what you guys think of the mounting brackets. I have some 3/4" plate. Do you think that a piece 3" wide, 8" long will be strong enough for shackle mounts? The plan is to weld them to the frame and have them pass through a piece of 5" C-channel and have a hole in them for a shackle. And the other question is how big do I drill the hole for the clevis. From what I found online, the pin on the clevis is 7/8". Do I try to find a 15/16" drill bit, or 1"? Thanks.